This presentation is an attempt to give an overview that provides a flavor for the breadth of structural applications. Note that many times other properties, such as thermal-shock resistance, conductivity, etc. will also be required for application. This presentation will not be all-inclusive. Polycrystalline forms, sintered mesophase, and carbon fiber reinforced composites will be covered in some detail but nanocarbons will not be included. Many groups are working on reinforcement, thread, ropes, and nanocomposites. These are being covered in this meeting and apart from a few examples, such as, Hyperion and Applied Sciences have not yet been commercialized. They will be a subject for a future meeting.